WIDE COMBINED TILLAGE UNIT Russian patent published in 2004 - IPC

FIELD: agricultural engineering. SUBSTANCE: tillage unit has central and side frames incorporating successively arranged tillage tools, carrier and transport wheels, hitch tongue and adjustment mechanisms. Tillage tools are made in the form of disk batteries, flat hoes, roll and leveling drum. Disk batteries are equipped with disk-bar bushings. Bushing bars are arranged on peripheral surface of radius R_b = R_d-α(0,4...0,6), where R_d is radius of disk; α is flat hoe penetration depth; 0.4-0.6 is coefficient. Roll is equipped with outer and middle disks having rims. Rim width is substantially greater than thickness of disk material. Bars arranged between disks are provided with teeth. Leveling drum has blades provided alternatively with ridges and slots. Blades are arranged in zigzag pattern over drum peripheral surface. Flat hoes are arranged in three rows in stepped pattern and mounted behind disk batteries. EFFECT: simplified construction and improved quality of soil tillage.